Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 338)

Product Overview
Appendix A
A –6
BASIC Development Software
Use a personal computer with the BASIC Development software (PBASE)
to create a BASIC program that is then downloaded to your BASIC
module. PBASE provides an efficient means to edit, compile (translate),
upload, and download BASIC programs to the BASIC module. You can
use PBASE with either the RS-232 or the DH-485 interface. You must use
PBASE software when the DH485 port is the program port,
RS-232 Interface
In this configuration, you connect the serial port on the personal computer
to port PRT1 or on the BASIC module. The personal computer
communicates with the BASIC module through terminal emulation over an
RS-232 interface. Port PRT1 is configured as the program port.
Personal computer
with PBASE software PLC processor
with BASIC module
Null modem cable
DH-485 Interface
In this configuration, you interface the serial port on the personal computer
with port DH485 on the BASIC module through a 1747-PIC
Interface/Converter. The 1747-PIC Interface/Converter converts the
RS-232 signals from the personal computer RS-232 serial port to RS-485
format. Port DH485 is configured as the program port.
Personal computer
with PBASE software
1747-C10 cable
Interface/Converter RS-232 to RS-485 (1747-PIC)
PLC processor
with BASIC module
Refer to the BASIC Development Software Programming Manual
(publication number 1746-6.2) for additional information on this software.